There may be no single cause of bipolar disorder (aka manic depression). Instead, research indicates the causes of bipolar disorder are probably a combination of biochemical, genetic and environmental factors that may trigger and perpetuate the chemical imbalances in the brain.
Net worth: $829 million. Telecommunications mogul Strive Masiyiwa is widely regarded as the richest man in Zimbabwe and is one of the richest men in Africa with a net worth of more than US$800 million.
One of the most popular foods in Zimbabwe is the national dished called Sadza. Sadza is made from cornmeal or maize, and is usually eaten with relish. Relish may refer to any â¦ kind of vegetable stew, but nyama is the common relish to the Zimbabweans. Nyama means meat, such as beef or chicken.